<%# Link showing page number
  - available local variables
    page:          a page object for "this" page
    url:           url to this page
    current_page:  a page object for the currently displayed page
    total_pages:   total number of pages
    per_page:      number of items to fetch per page
-%>
<li class="page-item<% if page.current? %> active<% end %>">
  <%= link_to tag.span(page), url, class: "page-link", rel: page.next? ? 'next' : page.prev? ? 'prev' : nil %>
</li>
